My Undercover Soundtrack guest this week is Kevin McGill – one half of my favourite books podcast, Guys Can Read. To write his epic adventure fantasy Nikolas & Company, he needed to get back in touch with his early teen self – but his book’s soundtrack goes way beyond mere angst. There’s music for magic, mythology, mayhem – and even, ahem, ‘girl scenes’. I’ll let him explain all that, and more, here on Wednesday